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Definition
2024
apterium
apterium
English
Noun
apterium
(
plural
apteria
)
(
ornithology
)
An area of bare (
featherless
) skin on a
bird
.
1918
,
American Ornithologists' Union,
The Auk
:
The two halves of the lower cervical tract are still separated by an
apterium
4 mm. wide, as in the young bird, but contour feathers are now present on the chin and upper throat, so that they are united at their upper ends.
Antonyms
pteryla
Translations
an area of featherless skin
Portuguese:
aptéria
f
Etymology
See
Latin
aptera
.
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